IMS-193
Pulverised Basalt Sulphide Au 4.35g/t
IMS-193 is a high-grade basalt-hosted gold (Au) certified reference material (CRM) designed for precision quality control in fire assay gold analysis for mining and exploration laboratories. Certified in accordance with ISO 17034:2016 and ISO Guide 35:2017, this CRM is a homogenized blend of pulverized basalt spiked with gold, validated across 13 ISO/IEC 17025-accredited laboratories for exceptional reliability in high-concentration Au analysis.
Key Features
- Certified Au content: 4.35 g/t ± 0.125 g/t (1 SD)
- Optimized for high-grade Au analysis: Validated for Pb collection fire assay (AAS/ICP finish) using 30–50g aliquots.
- Supplied in 1 kg PET jars or 6 kg boxes, ensuring long-term stability and batch consistency.
- 5-year validity when stored in cool, dry conditions.
Key Certified Values
|
Analyte |
unit |
Certified Value (y) |
Standard Deviation (s) |
95% Confidence Interval (CI) |
||
|
1 SD |
1 SD Within Lab |
lower |
upper |
|||
|
Au |
g/t |
4.35 |
0.125 |
0.053 |
4.28 |
4.42 |
Intended Use
- QC monitoring: Calibration and validation of fire assay methods for high-grade Au ores (minimum 30g sample mass).
- Bias detection: Identifying systematic errors in laboratories processing high-concentration Au samples.
- Homogeneity assurance: Certified for low variability (RSD 1.61% in homogeneity studies).
Pulverised Gold
SKU: 10193
